/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alipay.sofa.tracer.plugins.datasource;

import java.sql.Array;
import java.sql.Blob;
import java.sql.CallableStatement;
import java.sql.Clob;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.NClob;
import java.sql.PreparedStatement;
import java.sql.SQLClientInfoException;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.SQLXML;
import java.sql.Savepoint;
import java.sql.Statement;
import java.sql.Struct;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.Executor;

/**
 * @author shusong.yss
 * @author qilong.zql
 * @since 2.2.0
 */
public class ExtendedConnection implements Connection {

    private final BaseDataSource dataSource;

    private final Connection     delegate;

    private final Prop           prop;

    public ExtendedConnection(BaseDataSource dataSource, Connection delegate, Prop prop) {
        this.dataSource = dataSource;
        this.delegate = delegate;
        this.prop = prop;
    }

    public Prop getProp() {
        return prop;
    }

    public Connection getDelegate() {
        return delegate;
    }

    public BaseDataSource getDataSource() {
        return dataSource;
    }

    @Override
    public Statement createStatement() throws SQLException {
        Statement st = delegate.createStatement();
        if (st != null) {
            return new ExtendedStatement(this, st, prop);
        }
        return null;
    }

    @Override
    public Statement createStatement(int resultSetType, int resultSetConcurrency)
                                                                                 throws SQLException {
        Statement st = delegate.createStatement(resultSetType, resultSetConcurrency);
        if (st != null) {
            return new ExtendedStatement(this, st, prop);
        }
        return null;
    }

    @Override
    public Statement createStatement(int resultSetType, int resultSetConcurrency,
                                     int resultSetHoldability) throws SQLException {
        Statement st = delegate.createStatement(resultSetType, resultSetConcurrency,
            resultSetHoldability);
        if (st != null) {
            return new ExtendedStatement(this, st, prop);
        }
        return null;
    }

    @Override
    public PreparedStatement prepareStatement(String sql) throws SQLException {
        PreparedStatement delegatingPreparedStatement = null;
        if (prop.isFastDelegate()) {
            delegatingPreparedStatement = delegate.prepareStatement(sql);
        } else {
            delegatingPreparedStatement = new BasePreparedStatement(this) {
                @Override
                protected PreparedStatement doPrepareStatement(String sql) throws SQLException {
                    return delegate.prepareStatement(sql);
                }
            };
        }
        return new ExtendedPreparedStatement(this, delegatingPreparedStatement, sql, prop);
    }

    @Override
    public PreparedStatement prepareStatement(String sql, final int resultSetType,
                                              final int resultSetConcurrency) throws SQLException {
        PreparedStatement delegatingPreparedStatement = null;
        if (prop.isFastDelegate()) {
            delegatingPreparedStatement = delegate.prepareStatement(sql, resultSetType,
                resultSetConcurrency);
        } else {
            delegatingPreparedStatement = new BasePreparedStatement(this) {
                @Override
                protected PreparedStatement doPrepareStatement(String sql) throws SQLException {
                    return delegate.prepareStatement(sql, resultSetType, resultSetConcurrency);
                }
            };
        }
        return new ExtendedPreparedStatement(this, delegatingPreparedStatement, sql, prop);
    }

    @Override
    public PreparedStatement prepareStatement(String sql, final int resultSetType,
                                              final int resultSetConcurrency,
                                              final int resultSetHoldability) throws SQLException {
        PreparedStatement delegatingPreparedStatement = null;
        if (prop.isFastDelegate()) {
            delegatingPreparedStatement = delegate.prepareStatement(sql, resultSetType,
                resultSetConcurrency, resultSetHoldability);
        } else {
            delegatingPreparedStatement = new BasePreparedStatement(this) {
                @Override
                protected PreparedStatement doPrepareStatement(String sql) throws SQLException {
                    return delegate.prepareStatement(sql, resultSetType, resultSetConcurrency,
                        resultSetHoldability);
                }
            };
        }
        return new ExtendedPreparedStatement(this, delegatingPreparedStatement, sql, prop);
    }

    @Override
    public PreparedStatement prepareStatement(String sql, final int autoGeneratedKeys)
                                                                                      throws SQLException {
        PreparedStatement delegatingPreparedStatement = null;
        if (prop.isFastDelegate()) {
            delegatingPreparedStatement = delegate.prepareStatement(sql, autoGeneratedKeys);
        } else {
            delegatingPreparedStatement = new BasePreparedStatement(this) {
                @Override
                protected PreparedStatement doPrepareStatement(String sql) throws SQLException {
                    return delegate.prepareStatement(sql, autoGeneratedKeys);
                }
            };
        }
        return new ExtendedPreparedStatement(this, delegatingPreparedStatement, sql, prop);
    }

    @Override
    public PreparedStatement prepareStatement(String sql, final int[] columnIndexes)
                                                                                    throws SQLException {
        PreparedStatement delegatingPreparedStatement = null;
        if (prop.isFastDelegate()) {
            delegatingPreparedStatement = delegate.prepareStatement(sql, columnIndexes);
        } else {
            delegatingPreparedStatement = new BasePreparedStatement(this) {
                @Override
                protected PreparedStatement doPrepareStatement(String sql) throws SQLException {
                    return delegate.prepareStatement(sql, columnIndexes);
                }
            };
        }
        return new ExtendedPreparedStatement(this, delegatingPreparedStatement, sql, prop);
    }

    @Override
    public PreparedStatement prepareStatement(String sql, final String[] columnNames)
                                                                                     throws SQLException {

        PreparedStatement delegatingPreparedStatement = null;
        if (prop.isFastDelegate()) {
            delegatingPreparedStatement = delegate.prepareStatement(sql, columnNames);
        } else {
            delegatingPreparedStatement = new BasePreparedStatement(this) {
                @Override
                protected PreparedStatement doPrepareStatement(String sql) throws SQLException {
                    return delegate.prepareStatement(sql, columnNames);
                }
            };
        }
        return new ExtendedPreparedStatement(this, delegatingPreparedStatement, sql, prop);
    }

    @Override
    public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency,
                                         int resultSetHoldability) throws SQLException {
        return delegate.prepareCall(sql, resultSetType, resultSetConcurrency, resultSetHoldability);
    }

    @Override
    public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency)
                                                                                                 throws SQLException {
        return delegate.prepareCall(sql, resultSetType, resultSetConcurrency);
    }

    @Override
    public Map<String, Class<?>> getTypeMap() throws SQLException {
        return delegate.getTypeMap();
    }

    @Override
    public void setTypeMap(Map<String, Class<?>> map) throws SQLException {
        delegate.setTypeMap(map);
    }

    @Override
    public void setHoldability(int holdability) throws SQLException {
        delegate.setHoldability(holdability);
    }

    @Override
    public int getHoldability() throws SQLException {
        return delegate.getHoldability();
    }

    @Override
    public Savepoint setSavepoint() throws SQLException {
        return delegate.setSavepoint();
    }

    @Override
    public Savepoint setSavepoint(String name) throws SQLException {
        return delegate.setSavepoint(name);
    }

    @Override
    public void rollback(Savepoint savepoint) throws SQLException {
        delegate.rollback();
    }

    @Override
    public void releaseSavepoint(Savepoint savepoint) throws SQLException {
        delegate.releaseSavepoint(savepoint);
    }

    @Override
    public CallableStatement prepareCall(String sql) throws SQLException {
        return delegate.prepareCall(sql);
    }

    @Override
    public String nativeSQL(String sql) throws SQLException {
        return delegate.nativeSQL(sql);
    }

    @Override
    public void setAutoCommit(boolean autoCommit) throws SQLException {
        delegate.setAutoCommit(autoCommit);
    }

    @Override
    public boolean getAutoCommit() throws SQLException {
        return delegate.getAutoCommit();
    }

    @Override
    public void commit() throws SQLException {
        delegate.commit();
    }

    @Override
    public void rollback() throws SQLException {
        delegate.rollback();
    }

    @Override
    public void close() throws SQLException {
        delegate.close();
    }

    @Override
    public boolean isClosed() throws SQLException {
        return delegate.isClosed();
    }

    @Override
    public DatabaseMetaData getMetaData() throws SQLException {
        return delegate.getMetaData();
    }

    @Override
    public void setReadOnly(boolean readOnly) throws SQLException {
        delegate.setReadOnly(readOnly);
    }

    @Override
    public boolean isReadOnly() throws SQLException {
        return delegate.isReadOnly();
    }

    @Override
    public void setCatalog(String catalog) throws SQLException {
        delegate.setCatalog(catalog);
    }

    @Override
    public String getCatalog() throws SQLException {
        return delegate.getCatalog();
    }

    @Override
    public void setTransactionIsolation(int level) throws SQLException {
        delegate.setTransactionIsolation(level);
    }

    @Override
    public int getTransactionIsolation() throws SQLException {
        return delegate.getTransactionIsolation();
    }

    @Override
    public SQLWarning getWarnings() throws SQLException {
        return delegate.getWarnings();
    }

    @Override
    public void clearWarnings() throws SQLException {
        delegate.clearWarnings();
    }

    @Override
    public Clob createClob() throws SQLException {
        return delegate.createClob();
    }

    @Override
    public Blob createBlob() throws SQLException {
        return delegate.createBlob();
    }

    @Override
    public NClob createNClob() throws SQLException {
        return delegate.createNClob();
    }

    @Override
    public SQLXML createSQLXML() throws SQLException {
        return delegate.createSQLXML();
    }

    @Override
    public boolean isValid(int timeout) throws SQLException {
        return delegate.isValid(timeout);
    }

    @Override
    public void setClientInfo(String name, String value) throws SQLClientInfoException {
        delegate.setClientInfo(name, value);
    }

    @Override
    public void setClientInfo(Properties properties) throws SQLClientInfoException {
        delegate.setClientInfo(properties);
    }

    @Override
    public String getClientInfo(String name) throws SQLException {
        return delegate.getClientInfo(name);
    }

    @Override
    public Properties getClientInfo() throws SQLException {
        return delegate.getClientInfo();
    }

    @Override
    public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
        return delegate.createArrayOf(typeName, elements);
    }

    @Override
    public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
        return delegate.createStruct(typeName, attributes);
    }

    @Override
    public void setSchema(String schema) throws SQLException {
        delegate.setSchema(schema);
    }

    @Override
    public String getSchema() throws SQLException {
        return delegate.getSchema();
    }

    @Override
    public void abort(Executor executor) throws SQLException {
        delegate.abort(executor);
    }

    @Override
    public void setNetworkTimeout(Executor executor, int milliseconds) throws SQLException {
        delegate.setNetworkTimeout(executor, milliseconds);
    }

    @Override
    public int getNetworkTimeout() throws SQLException {
        return delegate.getNetworkTimeout();
    }

    @Override
    public <T> T unwrap(Class<T> iface) throws SQLException {
        return delegate.unwrap(iface);
    }

    @Override
    public boolean isWrapperFor(Class<?> iface) throws SQLException {
        return delegate.isWrapperFor(iface);
    }
}
